PL. —Trillium grandiflorumBotanical illustration — drop image
Peak bloom windowZone 6b · frost-offset weeks
Winter
In bloom
Spring
Peak bloom
Summer
Not in bloom
Fall
Not in bloom
Peak bloom
In bloom
Background
Care guide
SunPart to full shade
Water1 inch per week; keep moist
SoilRich, humus-rich, moist, well-draining; pH 5.5–7.0
Spacing12–18 inches
Height12–18 inches
Zone3a – 7b
Native RegionAL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV
Frost hardy